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As one of the top China cardboard tube packaging manufacturers and paper tube packaging suppliers, we devote all of our efforts to research and launch more high quality packaging products to global market.
Barrier Function: Surface coatings act as a barrier between the paper substrate and external moisture. They create a protective layer that prevents water molecules from penetrating the paper fibers, thus reducing the risk of moisture absorption.
Hydrophobic Properties: Many surface coatings used in paper packaging are hydrophobic, meaning they repel water. This hydrophobicity prevents water droplets from adhering to the paper surface, further minimizing the chances of moisture ingress.
Reduced Porosity: Surface coatings can fill in the pores and gaps present in the paper substrate, reducing its porosity. This decreases the pathways through which moisture can infiltrate the paper, enhancing its resistance to water vapor transmission.
Improved Durability: Coatings not only provide moisture resistance but also improve the durability and strength of the paper tube packaging. They form a protective shield that shields the paper from physical damage and degradation caused by moisture exposure.
Customizable Properties: Manufacturers can tailor the properties of surface coatings to meet specific moisture-proof requirements. For instance, coatings can be formulated to withstand high humidity levels or exposure to liquid water for extended periods.
Compatibility with Printing: Surface coatings can be compatible with printing inks and processes, allowing for the incorporation of branding, graphics, and other design elements on the paper tube packaging. This ensures that moisture resistance is not compromised by the printing process.
Environmental Considerations: While traditional surface coatings may contain synthetic materials, advancements have been made in developing eco-friendly alternatives derived from renewable resources or biodegradable materials. These environmentally friendly coatings provide moisture resistance without compromising sustainability.
Application Techniques: The method used to apply the surface coating can also influence its effectiveness in enhancing moisture resistance. Techniques such as roller coating, spray coating, or curtain coating can ensure uniform coverage and adhesion to the paper substrate.
